2. How does enabling or disabling the Microsoft port Enable bidirectional support impact
the HP UPD's bidirectional communication? The HP UPD uses the MS port’s bidirectional
communication for basic status level related to print spooler operations such as ‘Printer Online’
and ‘Paper Out.’ However, for product configuration and capabilities the HP UPD uses its own
installed services for bidirectional communication between the HP UPD and the target product
(NET DRIVER HPZ12 and PML DRIVER HPZ12).
Figure 6-4 Enabling bidirectional support
3. Does HP UPD Printer Autoconfiguration bidirectional communication cause slow print
performance? No, the traffic send/receive response is very small (SNMP around 65 kilobytes)
and infrequent. For traditional mode installation the UPD only queries for printer information at
time of installation, when executed through Update Now or RUNDLL32 at the UPD installed
client, and for a simple change id at the beginning of Printer Automatic Configuration job to verify
that the configuration has not changed.
4. After the PRINTER AUTOMATIC CONFIGURATION has completed a successful
bidirectional update several device features appear in the UPD driver user interface that
my device does not support. For example, why does the DEVICE SETTINGS tab show
"Tray 3: Not Installed" for several trays? The settings are place holders for the UPD. Because
the UPD does not know before an Automatic or Preconfiguration of the driver's exact
configuration the UPD driver UI structure must remain capable of displaying settings beyond the
standard default settings in the UDP drivers UI design. By preserving the setting locations, after
completing Printer Automatic Configuration update the user interface can dynamically update the
"Not Installed" settings to the current configuration when a change has occurred to configuration
of the device.
5. Print Properties-Device Settings-Installable Options, the Automatic Configuration option
is grayed out and unavailable for selection. What could be the cause?
Two possibilities dependent upon how the driver was installed onto the host.
a. Point and Print connection the driver is a printing client to print server connection. Updates
would be centrally controlled from the print server and not the client, therefore the print
client would not initiate the Printer Auto Configuration between the print queue and the
78 Chapter 6 HP UPD Administrative features ENWW
To Next Page
Loading...
Need help?
General
